This chart shows past emission trends of nitrogen oxides (NOx), non-methane volatile organic compunds (NMVOC), carbon monoxide (CO) and methane (CH4) in the EEA-32 and EU-27 group of countries. In addition - for the EU-27 - the aggregated Member State 2010 emission ceilings for NOx and NMVOC are shown.

Total emissions of primary PM 10 particulate matter have reduced by 27% across the EEA-32 region between 1990 and 2009, driven by a 34% reduction in emissions of the fine particulate matter (PM 2.5 ) fraction; emissions of particulates between 2.5 and 10 µm have risen slightly (10%) over the same period.
Of this reduction in PM 10 emissions, 37% has taken place in the 'Energy Production and Distribution' sector due reasons including the fuel-switching from coal to natural gas for electricity generation and improvements in the performance of pollution abatement equipment installed at industrial facilities.